diff --git a/homeassistant/components/binary_sensor/command_line.py b/homeassistant/components/binary_sensor/command_line.py
index 1acefe973d2..14eba43d23d 100644
--- a/homeassistant/components/binary_sensor/command_line.py
+++ b/homeassistant/components/binary_sensor/command_line.py
@@ -1,5 +1,5 @@
 """
-Support for custom shell commands to to retrieve values.
+Support for custom shell commands to retrieve values.
 
 For more details about this platform, please refer to the documentation at
 https://home-assistant.io/components/binary_sensor.command/